[Ips-dhfpr] ASWFC Daily HF Prop Report - 13 October 26 issued 2330 UT on 13 Oct 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 OCTOBER 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 OCTOBER) 
Date   T index  Conditions    
13 Oct    59    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      61
Oct      60
Nov      58


2. FORECAST (14 OCTOBER - 16 OCTOBER)
Date   T index  Conditions       MUFs                              
14 Oct    50    Normal-fair      Near predicted monthly values
15 Oct    55    Normal           Near predicted monthly values    
16 Oct    55    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were mostly near predicted values on 13-Oct, with some 
depressions and spread F observed in the southern Australian 
region during local dawn hours. Sporadic E was observed in the 
northern Australian region and Norfolk Island during local night 
hours. MUFs are forecast to be mostly near predicted values over 
14-16 Oct, with some mild depressions possible in the southern 
Australian region on 14-Oct due to ongoing geomagnetic activity.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au